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Cattle Boards
Health & Nutrition
timing of vaccines and AI
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<blockquote data-quote="Anonymous" data-source="post: 9966"><p>Different vaccines have different renewal periods. Lepto is commonly effective for only 6 months, so in bred animals it is often done twice yearly in at risk situations. Some vaccines are given less than yearly (I do blackleg every 3-5 years in mature cows) so it depends on which vaccine you're asking about. Best solution is to ask your vet or read the label.</p><p></p><p>Re: lepto in calves, it is very convenient to give to heifer calves with the rest of the vaccines, since it properly boosts them. In Canada, bull calves which may go into semen production have to be lepto negative, so we don't vaccinate bull calves here for lepto. Again, ask what's needed in your area!</p></blockquote><p></p>
[QUOTE="Anonymous, post: 9966"] Different vaccines have different renewal periods. Lepto is commonly effective for only 6 months, so in bred animals it is often done twice yearly in at risk situations. Some vaccines are given less than yearly (I do blackleg every 3-5 years in mature cows) so it depends on which vaccine you're asking about. Best solution is to ask your vet or read the label. Re: lepto in calves, it is very convenient to give to heifer calves with the rest of the vaccines, since it properly boosts them. In Canada, bull calves which may go into semen production have to be lepto negative, so we don't vaccinate bull calves here for lepto. Again, ask what's needed in your area! [/QUOTE]
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